/Engine/Plugins/Runtime/Metasound/Source/MetasoundEngine/Public/MetasoundOutput.h
Blueprint support for core types. If you want to support more core types, add them here. If you want to support types introduced in other plugins, create a blueprint library in that plugin.
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)() class UMetasoundOutputBlueprintAccess : public [UBlueprintFunctionLibrary](API\Runtime\Engine\Kismet\UBlueprintFunctionLibrary)